GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Changes that alter the form or appearance but does not turn any substance in the matter into a different substance
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A change in matter a that produces one or more new substances.
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Solid, Liquid, Gas
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there are many changes in this world, but physical ones, aren’t one of them
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Detailed explanation-1: -Melting is an example of a physical change. A physical change is a change to a sample of matter in which some properties of the material change, but the identity of the matter does not. When we heat the liquid water, it changes to water vapor.
Detailed explanation-2: -Chemical changes are those where one or more substances are combined to produce a new substance. At the end of a chemical change, you have a new substance. Burning a piece of paper would be a chemical change, as would baking a cake. Ozone is an invisible gas made of 3 oxygen atoms.
Detailed explanation-3: -physical change-a change which alters a substance without altering its composition. physical property-a characteristic that can be observed or measured without changing the chemical makeup of a substance. Types include color, odor, texture, boiling point, melting point, and density.